If you were going to cast someone for a role called “The Dark Mute,” Kurt Sutter might be who you’re looking for. That is, if you are looking for a cross between a biker and a medieval warrior, complete with a ponytail, heavyweight tattoos and a smile with a hint of menace.

Sutter, of course, is the creator of FX’s long-running intense Hamlet-like biker drama “Sons of Anarchy.” When that show squealed to its dynamic halt last year, the writer/producer turned his attention to an even more primitive world: 14th-century Wales. That’s the backdrop for the latest series “The Bastard Executioner,” which airs Tuesday with a two-hour premiere on FX.

“I’ve never been a ‘Dungeons & Dragons’ guy or been to a Renaissance Faire,” admits 55-year-old Sutter, “but it’s been fun for me to immerse myself in the history of the time.”

“The Bastard Executioner” tells the story of Wilkin Brattle (played by Australian actor Lee Jones), a soldier who has grown tired of war during a time of upheaval and rebellion. Along the way, he has become something of an enemy of the state and was intent on going into hiding until he is persuaded by a mystic named Annora. Brattle believes Annora has a divine message for him — to take on the identity of a royal executioner — and soon he finds himself back in the fray.

Katey Sagal, Sutter’s wife and a veteran of “Sons of Anarchy,” plays Annora. The actress is thrilled by the change in roles.

“For seven years, I played a very dark character, a woman that was defensive and sort of always waiting for the next shoe to drop,” Sagal says.

In her new role, it’s a wig, peasant clothes “and, thank God, no high heels,” she says with a laugh. Since Annora is of undetermined origins, Sagal didn’t even have to master an English accent.

Another bonus was “not to be on the concrete of North Hollywood, but in the gorgeous air in Wales,” she adds.

Wales was also an attraction English actor Stephen Moyer, who starred as a vampire for seven seasons on HBO’s “True Blood.” The history geek in him was excited to film at real landmarks like Caerphilly Castle, which was built in 1115.

“The extraordinary aspect of that is that our characters, the way that Kurt has written it, would have been in those castles,” he says.

Sutter’s quest for authenticity even went to making sure that the characters didn’t look like they had been to the dentist.

“After seven years of wearing fangs, I really didn’t think I was going to be coming onto a show where we were going to have to have teeth casts,” jokes Moyer, who plays Milus Corbett, a devious lord with political aspirations,

The idea for “The Bastard Executioner” came from Oscar-winning producer Brian Grazer (“A Beautiful Mind”), who says he was “just fascinated with the whole the premise of an executioner and the moral complexity of that.” He took it to FX and they decided it was the fit for Sutter.

“He got excited about the vaguest of ideas and almost immediately turned it into what it is in now,” says Grazer, author of the recent book “A Curious Mind: The Secret to a Bigger Life,” in which he writes about conversations with people who inspired him.

Like the Jax (Charlie Hunnam) and SAMCRO (Sons of Anarchy Motorcycle Club, Redwood Original), Sutter sees Wilkins and his warriors as outliers. That’s what intrigued him about the series — besides FX didn’t want “a show where there’s just a head in a basket every week.”

Along with offering an “opportunity to work out all my Catholic (expletive),” Sutter hopes “Executioner’s” setting “ultimately becomes a backdrop for an interesting character struggle and complex relationships.”

As for the role of “The Dark Mute,” Sutter — who began his career as an actor — cast himself.

“I am the only one who would hire me as an actor,” he deadpans. “Look, acting was my first passion. This role is fun because it is in the background with a limited mythology. I think I end up in five episodes with one bigger than the others.”

Like his wife, Sutter didn’t have to learn a British accent — or any lines for that matter. He hints, though, that both “The Dark Mute” and Annora will be dropping breadcrumbs throughout the first season to give viewers hints regarding the significance of the characters.

“Sons of Anarchy” was criticized for what some saw as excessive violence. No doubt Sutter, who likes to cultivate something of an outlaw image, invites that to a degree and plans to showcase some of it in “Executioner.”

“Nothing wrong with colorful brutality,” he reckons. “The violence, as absurd as it could be sometimes on ‘Sons,’ always came from an organic place and that it was never done in a vacuum, meaning that for every violent act there are ramifications. And I feel like I was able to follow through with that. That’s sort of my same mandate here.”

Rob Lowman began at the L.A. Daily News working in editing positions on the news side, including working on Page 1 the day the L.A. Riots began in 1992. In 1993, he made the move to features, and in 1995 became the Entertainment Editor for 15 years. He returned to writing full time in 2010. Throughout his career he has interviewed a wide range of celebrities in the arts. The list includes the likes of Denzel Washington and Clint Eastwood to Kristin Stewart and Emma Stone in Hollywood; classical figures like Yo Yo Ma and Gustavo Dudamel to pop stars like Norah Jones, Milly Cyrus and Madonna; and authors such as Joseph Heller, John Irving and Lee Child. Rob has covered theater, dance and the fine arts as well as reviewing film, TV and stage. He has also covered award shows and written news stories related to the entertainment business. A longtime resident of Santa Clarita, Rob is still working on his first more-than-30-year marriage, has three grown children (all with master's degrees) and five guitars.